The rate of diffusion of CO2 is much higher than that of O2 due to which of the following reasons?
1
The thickness of the diffusion membrane is thinner for CO2.
2
CO2 has a lower solubility than O2.
3
The partial pressure of CO2 is higher in the alveoli.
4
The solubility of CO2 is 20-25 times higher than that of O2.